<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:th="http://www.thymeleaf.org"
      lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<em th:size="${str1}"></em>
       <span th:text="'我是'+${str1}+'你大大'"></span></br>
       <span th:text="|我是${str2}你大大!|"></span></br>

        <span th:if="true">是true就显示</span>
        <span th:unless="!false">是false就显示</span>

    <span th:switch="one">
        <span th:case="two">two</span>
        <span th:case="one">one</span>
    </span>

    <h1 th:insert="~{copy :: cut}"></h1><br>
    <span th:replace="~{copy :: cut}"></span><br>
    <span th:include="~{copy :: cut}"></span><br>
</body>
</html>